P-5

Ancillary Services Prices, Day Ahead Market

04/30/2007

Time StampEastWest
10 Min Spinning Reserve ($/MWHr)10 Min Non-Synchronous Reserve ($/MWHr)30 Min Operating Reserve ($/MWHr)Regulation ($/MWHr)10 Min Spinning Reserve ($/MWHr)10 Min Non-Synchronous Reserve ($/MWHr)30 Min Operating Reserve ($/MWHr)Regulation ($/MWHr)
00:000.250.250.25450.250.250.2545
01:000.250.250.25450.250.250.2545
02:000.250.250.25450.250.250.2545
03:000.250.250.25450.250.250.2545
04:000.250.250.25450.250.250.2545
05:000.250.250.25450.250.250.2545
06:000.840.840.3450.30.30.345
07:0072.690.55572.690.555
08:009.593.09256.58.52256.5
09:0011.55256.58.52256.5
10:0011.535256.58.52256.5
11:0015.35256.58.52256.5
12:0013.657.15256.58.52256.5
13:0013.186.680.55070.50.550
14:0016.5100.55070.50.550
15:0016.5100.55070.50.550
16:0016.5100.55070.50.550
17:00103.50.55070.50.550
18:0012.866.360.55070.50.550
19:00103.50.55070.50.550
20:0020.183.89260.512.52260.5
21:007.163.060.55572.90.555
22:0070.840.55070.840.550
23:000.840.840.3500.30.30.350